Method of and machine for making wire-glass.



PATBNTBD DEG. 25, 19o`s.

N. FRANZEN. METHOD 0F AND MACHINE POR MAKNG WIREGLASS.

APPLOAIOH FILED JUNE 4, 1906 2 SHEETS-SHEET 2.

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B URS, ,PENNSYL- Patented Dec. 25, `1906.

To iv/l', uffa/om' it muyccotcernf.' y Be known that I, NiCKLAsFR citizen of the Unit-ed States, 'B/onongelielefin the county of' and State of Pennsylvania, here invented or discovered Certe-in new and useful niproveinents in Methods of sind. Machines for Mnl;- in f Wire-Glass; of which improvements the fr nlowin:C7 e speciieetion. l'

lilly invention Telnr to inipro'veinonis in methods of and nieclnnes for mit" ing; Wire glass; and the ohieetof my imp-'u t is to reduce 'ireof superior qi,

the :icoc i fr drawings, winch" form Lnnrt ot this speoiucotron, ligui'e l shows dingromnurtically a nuichine which fein'oodies and operetes to cari-ry out niy present invention. ln this View the parte ere 'shown in Vertical longitudinal section. Fr 2 ehois n detailed portion on larger scale, sind ig. J3 isn View in vertical longitudinal section of a "iiieohine of somewhet-dilerent construction"which also embodies my present invei tion in its broader asA ect.

Rei in to Fiei a Deir of rolls an.` o 7 nre so s need aan' .firrenffed with resiect to one another tluit, rotating in opposite direc,-

.`tons, (indioeted by the arrows a an d 71,) they unite unen a "fabric D, fed into the pass lietWeen their; and into en integral sheet of' wire glass A, two layers of glass B and C, pte "viously spread upon their surfaces in the manner nereineiter explanied A pfui' oi rolls 5 and oonstitute ineens for spreading upon the surfaces of rolls i and. 2 the lnyers of glass 1S and C, These rolls 5 and 5 ero spaced and zn'rstnged relatively torolls 1 and .2te eieot ,that end, end further, they' 'are ireferebly so arrnnqed=tnot each forms in oon'unction with t 1e roll u on which it spreads layer :t liopper-like receptacle wherein molten glass may he teenierl and reta-ined by gravity. The surfaces of rolls and 6 are pittcd--that is, in the surfaces of these rolls are formed :t large nu .iher of pockets or recesses after the manner set forth in niy application for Letters Feitent, 'filed June 7, 1905, Serial 'No 254,130. These pockets or recesses or culs-de-sec in the otherwise smooth surfaces of rolls 5 and 6 will when brought into Contact with the molten glass in the manner presently to he insulation zwninst the conduction of heat from the molten glass to the roll-body, preventing chilling. leiniteetf nt such point, and Consequently the surface' ofthe layer spread by the pitted 'roll upon 'the surfaceol' roll l or 2 ns it pee. I s 'from beneath the spreading roll will oe-ii spots 'iortions of the surface corresponding in position to the pockets in the roll) of 'unlmrdoned nnchilled glass. It hns heretofore been e, rliflioult r in making wire-glass of se"imately-formed loyers that the liirers are c illcd in their l'ornnition and that their subsequent union or weld is oonsequentiy imperfect. By Virtue of these pitted rolls used as layer-spreading rolls the layers, lie/:irirw slight' protuboranocs of soft or, inieliilled gloss uro intinmtely united and Welded.

it ef-ill he understood that while rolls 5 and G may both he ndvuntngeously pitted in the n1 miner nul for the purpose described my invention will still he practiced if but one of these two rolls loo so pitted.

lt may he 'found convenient to make roll 2 smaller thun roll 1, as shown in Fig. l, and in tlxut causo fin additional roll i() nmy be eniployefl to complete the hopper l or the molten glass supplied lo roll 2. vSuch roll will preferzihiy be positively (Lucn in the direction indicated li' row 1.- A f Roll. I? heur; iu the izizlicliino illustrated smaller than roll 1,;1 chute 13 is introduced when-.on the finished sheet A is directed laterally beneath roll und delivered to a carrier 14, upon which it is horno to tho annealingovenl (shown at 15.)

The, forming-sulfate@ which in Fig. 1 appears iis n roll 1, may be casting-trible la, as shown in Fier. lflfilih n thc sprcmling-roll 5 coperaties :is inthe otlicr case to spread molten gloss to layer forni., :ind upon it the two layers of glass B and C are united upon i'ubrio l) hy roll 2. In this ,instence I have ployed to enlarge the hooperfor molten glass s 2 und to :'oe spread Vbet'iveen rol ICO 35 is l'ree to descend by gravity.

55 tions indicated by arrows (I and Up to this point I have made no reference to the wire, and n'hile it will be observed that the machine will produce plates of glass whether wire be introduced or not and that my invention is accordingly unlimited in that regard it remains the tact that the object' is the introduction of wire and the production 'otwire-glass. The wire (indicated in the drawings at D) is introduced into the pass be- Io tween rolls 1 and 2, `where the surfaces ol' the rolls approach one another, each faced with a layer oi For present commercial puroses the wire D is in the l'orln ot' a netting; )ut obviously itmay be of any desired and practical material prepared in any desired manner, and i. designate it tabric,"` and mean to include not only woven wire l'abric, but any substancel thus suitable tobe inlaid in glass, regardless ot' material and regardless zo ol" minute composition and shape.

A pair otl rolls 11 and 12 may be provided for properly controlling the feed olA the fabric into the machine. These rolls are, as shown, placed adjacent to the pass between rolls 1 and 2, (or between casting-tablel l and roll 2,) so that the fabric will be delivered into the pass. The fabric D is supplied through the space between rolls 5 and 6. A chute lo may be arranged to sustain the fabric while 3o being carried into the machine. Rolls Il and 12 are shown in detail in Fig. 2. 'lhey are carried inV common supports or housings 17. One of them, 11, is immovable. The other, 12, is journaled in a slot-18, in which it By such arrangement the rolls 11 and 12- engage the fabric., and as the fabric descends and becomes heated by radiation from the proximate layers B and and expands these rolls 4o 11 and l2 hold the fabric back, keep it straight, and prevent buckling to one side or the other.

The advantage of expanding the wire by heat before its incorporation between layers Band C is obvious.

'.lhe operation ol' the parts will readily be understood l'ront the foregoing description. Rolls 1 and 2 are suitably set. to l'orin the iinished sheet, rolls and 6 adjusted to rolls l 5o and 2 to sp'read layers of desired thickness.

v6o wire is brought'. down and caught in the pass between rolls l and 2, and the two layers B and (l, on. or both having substantialtv unehilled surl'aces, as already explained, are, united and Welded between rolls l and i2 through the l'abric l) into a nished sheet ol' wire-glass A. This nished sheet may be carried to the annealing-oven in such manner as is shown in the drawings.

I claim as my inventionl. In a machine for making plate-glass the combination of a forming-surface, a pitted roll cooperating wity such surface to spread molten glass to layer form thereon, and means for uniting to a layer of glass so spread upon said surface 'a sec-ond, independentlyformed layer of glass, substantially as described.

2. In a machine for making plate-glass, the combination of xa roll, a second pitted roll cooperating with the first to spread molten glass to layer formy upon its surface, means for unit-ing to a layer of glass so spread upon said inst-named roll, a second independently-tormed layer of glass, substantially as described. i

3. In a machine for making plate-glass, the combination ot a pair of rolls rotating to unite into a single sheet layers of glass spread upon their several surfaces, and rolls coperating with said tirstnamed pair of rolls to spread molten glass to layer form thereon, the surfaces of said last-named rolls being pitted, substantially as described.

4. 1n a machine for making Wire-glass the combination of a pair of' rolls rotating to unite upon a fabricled into the pass between them layers of glass spread upon their several surfaces, and rolls cooperating with said tirst-named pair of rollsto spread molten glass to layer form thereon, the surfaces of said spreading-rolls being pitted, substalb. tially as described.

In a machine-tor making wire-glass, the combination ot` a forming-surface, a pitted roll coperating with such surface to spread molten glass to layer form thereon, means for uniting to a layer of glass so spread upon said surl'aeo a second independently-formed layer ot glass, and means for controlling the supply ot" fabricso arranged as to hold the l'abrie. out of contact with either layer until the layers are brought into contact with one another on opposite sides of the fabric, substantially as described. Y

6. ln a mac-bine for making wire-glass, the combination of a forming-surface,` a pitted roll cot'perating with such forming-surface to spread molten glass to layer form thereon, means for uniting to a layer of glass so spread upon said surface a second independentlyl'ormed layer of glass, and a pair of rolls cooperating bygravit y to engage a fabricand to cont rol the supply ot l'abric to said layers as they are progressively united, substantially as described. a

7. lhe method ot making plate-glass described herein whieh consists in spreading a batch of molten glass to a layer bearing upon its surface prot'rusions of soft or unchilled glass, spreading a second batch of molten IIO ISO

glass to layer form, and uniting the Said the protrusion-bearing Surface of the 'rst- 1o layer upon the protrusion-hearlng surface of named loyer and through the mesheS of a the irs'narned layer. I fabric.

8. The mthod of making Wire-glass dei In testimony whereof I have hereunto set scribed herein which consists in spreading a my hand. batch of molten glass to a layer hearing upon 5 NICKLAS FRANZEN. its surface protrusions of soft or unohilled Witnesses:

BAYARD H. CHRISTY, CHARLES BARNETT.

glass, spreading a second batch of glass to layer forni, and uniting the said layer upon 

